Circalittoral muddy sand

English name: Circalittoral muddy sand

Description (English)

Circalittoral non-cohesive muddy sands with the silt content of the substratum typically ranging from 5% to 20%. This habitat is generally found in water depths of over 15-20 m and supports animal-dominated communities characterised by a wide variety of polychaetes, bivalves such as Abra alba and Nucula nitidosa, and echinoderms such as Amphiura spp and Ophiura spp., and Astropecten irregularis. These circalittoral habitats tend to be more stable than their infralittoral counterparts and as such support a richer infaunal community.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A5.26
Bern Convention Included in a Resolution 4 habitat type at a higher level (A5)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Abra alba
Invertebrates Astropecten irregularis
Invertebrates Nucula nitidosa
Species scientific name English common name Species group
Abra alba Invertebrates
Astropecten irregularis Invertebrates
Nucula nitidosa Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 SS.SSa.CMuSa Circalittoral muddy sand source
CORINE Land Cover 5.2.3. Sea and ocean n/a
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 A5.26 Circalittoral muddy sand same
EUNIS Habitat Classification 200308 A4.27 Circalittoral muddy sand same
EUNIS Habitat Classification 200202 A4.27 Animal communities of circalittoral muddy sands same
EUNIS Habitat Classification 199910 A4.28 Animal communities of circalittoral muddy sands same
EUNIS Habitat Classification 199811 A4.71 Animal communities of circalittoral muddy sands same
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